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Brain contrast-enhanced T1-weighted images in the axial (3a) and sagittal (3b) views demonstrate an incomplete ring enhancement pattern with a smooth wall. An incomplete portion of the ring is on the lesion’s white matter side (green arrow), with perilesional oedema. The open ring enhancement is on the white matter side of the lesion, suggestive of an open ring sign.
Tumefactive demyelinating with open ring sign
# 18826 18.01.2025
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Coronal T2 Haste image (4a) showing a multicystic mass encapsulated mass in the right hemithorax deviating the mediastinum and flattening the right diaphragm. In-phase and out-of-phase T1 Vibe images (4b, 4c) depicting various areas of macroscopic fat.
Giant mediastinal mature teratoma in a child
17.01.2025
CT in the venous phase shows a lobulated, hypodense tumour in the gastrohepatic ligament (2a), associated with hypodense thickening of the lesser curvature of the stomach, multiple foci of fat interspersed among the soft tissue parts of the lesion and calcifications in its caudal aspect (2b).
Gastric haemangioma, an uncommon lesion
17.01.2025
Ultrasound images of left axillary lymph nodes with cortical thickness more than 2.5 mm (2a), round shape and irregular margins (2b). Lymph node core biopsy under ultrasound guidance using a 16-gauge automatic needle was performed on the lymph node with the highest cortical thickening, which maintained a discernible fatty hilum with normal vascularisation (2c and 2d).
Unilateral axillary lymphadenopathy, a rare presentation of toxoplasmosis
17.01.2025
Axial images of abdominopelvic CT without contrast (1a) and after contrast in the venous phase (1b), showing multiple solid bilateral renal lesions with fat infiltration, compatible with angiomyolipomas. They result in renal disruption. A hyperdense area within one of the angiomyolipomas suggests acute haemorrhagic content (red arrow). No signs of active bleeding are observed. Free fluid with a density higher than water is visualised in both paracolic gutters and pelvis (1c), suggestive of haemoperitoneum (
Bilateral multiple angiomyolipomas
17.01.2025
Persistent left superior vena cava.
Incidental but indispensable finding: Persistent left superior vena cava
17.01.2025

Featured teaching case

Axial HRCT axial image showing ground glass densities surrounding the nodules giving a “halo sign” (arrowhead).
Case 18470
A 45-year-old male patient presented to the emergency department with a hist...
06.03.2024
Clinical Case

Teaching cases

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Pre-procedural unenhanced multidetector CT (MDCT)
Case 11951
Clinical Cases
13.08.2014
CT examination performed with oral and intravenous contrast material
Case 9808
Clinical Cases
10.04.2012
Unenhanced (upper row) and contrast-enhanced (lower row) brain CT scan obtained on admission.
Case 6459
Clinical Cases
29.01.2008
Level of oropharynx
Case 983
Clinical Cases
22.05.2001
Patient 1. Oblique views of both breasts show axillary lymph nodes, slighly more prominent on the left side (B). No obvious b
Case 17393
Clinical Cases
18.08.2021

Featured selected case

Sagittal T2-weighted image shows a large high signal intensity cystic mass (red arrow) with a nodular, low signal intensity component (yellow arrow). Normal left ovary with follicles (white arrow) is seen posteriorly – negative beak sign.
Editors selection Ovarian serous borderline tumour in a young woman – MRI findings
# 16705 16.04.2020
Clinical Cases

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MRI sagittal T2 image showing bulky uterus with anterior uterine myometrial defect and a high signal intensity cystic structure within the defect. The cystic structure is extending into the uterine canal. Minimal pelvic collection is also noted.
Editors selection Typical imaging findings in a caesarean scar ectopic pregnancy – A case report
07.03.2024
CT sagittal and coronal shows partial fusion of the posterior and lateral aspect of C4-C5-C6 associated with a decrease in th
Editors selection Klippel-Feil spectrum
24.08.2023
Sagittal view of DP-weighted MRI shows an intraarticular nodular lesion posterior to the posterior cruciate ligament with hig
Editors selection Intraarticular nodular fasciitis of the knee
12.08.2023
Embryology of the Canal of Nuck and subsequent anatomy. The bottom image shows the diagram of a patent Canal of Nuck (left).
Editors selection Diagnostic ultrasound and intraoperative findings on canal of Nuck hernia with ovary
10.10.2023
T2 and FLAIR sequences with slight signal intensity changes in the basal ganglia, predominantly on the right.
Editors selection Diabetic striopathy, shortly diagnosed complication in diabetes mellitus II. Case report
16.11.2023